Wijiningutami, Sestika (2015) Karakteristik Aliran Tak Tunak Dan Perpindahan Panas Fluida Sisko Pada Pipa Annulus Vertikal. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Fluida sisko merupakan salah satu fluida non-Newtonian
yang mempunyai karakteristik bingham plastik. Permasalahannya
adalah fluida ini tidak dapat mengalir tanpa adanya energi panas
yang diberikan sebelum dialirkan dalam pipa. Pada penelitian ini,
dikaji bagaimana karakteristik aliran tak tunak dan perpindahan
panas fluida sisko pada pipa annulus vertikal. Model matematis
dari aliran fluida sisko dikembangkan dari persamaan
kontinuitas, momentum, dan persamaan panas. Model yang
diperoleh berupa Persamaan Differensial Parsial (PDP).
Kemudian, persamaan tersebut diselesaikan dengan
menggunakan metode beda hingga implisit Crank-Nicholson.
Dari simulasi diperoleh bahwa kecepatan fluida sisko lebih kecil
daripada fluida Newtonian. Tetapi temperatur fluida sisko lebih
besar daripada fluida Newtonian. Selain itu, semakin besar waktu
yang diberikan kepada kedua fluida, kecepatannya semakin besar
dan temperaturnya semakin kecil. Dengan demikian terlihat
bahwa profil kecepatan dan temperatur fluida sisko dipengaruhi
oleh besarnya waktu yang diberikan dan nilai parameter material,
selain itu distribusi temperatur juga dipengaruhi oleh bilangan
Brinkman.
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Sisko fluid is one of the non-Newtonian fluid that has the
characteristics of Bingham Plastic. The problem is that this fluid
can’t flow without heat energy given before flowed in the
pipeline. In this research, examined how the characteristics of
unsteady flow and heat transfer sisko fluid in the pipe vertical
annulus. Mathematical model of sisko fluid flow developed from
the equation of continuity, momentum, and heat equation. The
model obtained in the form of Partial Differential Equations
(PDE). Then, the equation is solved using an implicit finite
difference method of Crank-Nicholson. From the simulation
shows that, the velocity of sisko fluid smaller than Newtonian
fluid, but temperature of sisko fluid higher than Newtonian fluid.
Beside that, in greater time, the velocity of sisko and Newtonian
fluid getting higher, but the temperature getting smaller. Thus it
appears that velocity and temperature of the sisko fluid profile
affected by the amount of time given and the value of material
parameters, in addition to the temperature distribution is also
affected by the number Brinkman.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSMa 518.25 Wij k |
| Uncontrolled Keywords: | Fluida sisko, Bingham Plastic, Pipa Annulus Vertikal, Crank-Nicholson, Bilangan Brinkman, Sisko Fluid, Bingham Plastic, Vertical Annulus Pipe, Crank-Nicholson, Brinkman Number. |
| Subjects: | Q Science > Q Science (General) > Q180.55.M38 Mathematical models |
| Divisions: | Faculty of Mathematics and Science > Mathematics |
| Depositing User: | ansi aflacha |
| Date Deposited: | 14 Nov 2019 07:29 |
| Last Modified: | 14 Nov 2019 07:31 |
| URI: | http://repository.its.ac.id/id/eprint/71793 |
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